date! ,

Monthly Total Growing Degree Days

(a vali)

Base Temperature = 50 F

File last updated on Apr 6, 2013
*** Note *** Provisional Data *** After Year/Month 201304
a = 1 day missing, b = 2 days missing, c = 3 days, ..etc..,
z = 26 or more days missing, A = Accumulations present
Long-term means based on columns; thus, the monthly row may not
sum (or average) to the long-term annual value.
Months with 5 missing days or less use mean for missing day(s)
Individual Months not used for annual or monthly statistics if more than 5 days are missing.
Individual Years not used for annual statistics if any month in that year has more than 5 days missing.
YEAR(S JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC ANN
1893 0.00 0.00 0.00 z 0.00 z 189.88 c 422.50 k 352.00 o 395.00 f 0.00 z 0.00 z 0.00 z 0.00 z 189.88
1894 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
1895 0.00 z 0.00 z 18.50 s 207.32 b 393.59 c 500.36 b 698.61 c 720.23 a 534.00 48.71 c 9.83 a 0.00 a 3112.65
1896 0.00 1.00 0.00 a 156.50 391.78 b 406.00 l 0.00 z 675.80 a 207.69 d 44.00 0.00 f 0.00 1476.77
1897 0.00 0.00 0.00 a 0.00 z 146.00 j 474.00 345.50 p 0.00 z 563.00 203.05 a 0.00 a 0.00 b 1240.05
1898 0.00 0.00 a 0.00 20.00 241.00 562.24 a 651.55 c 578.84 b 351.21 a 56.46 c 2.59 a 0.00 a 2463.90
1899 0.00 f 0.00 0.00 a 0.00 z 229.83 b 0.00 z 0.00 z 661.85 a 297.41 a 153.34 c 0.00 0.00 z 1342.43
1900 0.00 o 0.00 0.00 134.00 366.50 488.00 622.50 783.00 356.50 207.18 a 1.00 0.00 2958.68
1901 0.00 a 0.00 0.00 95.00 253.50 595.00 942.00 629.00 259.62 d 92.00 0.00 0.00 a 2866.12
1902 0.00 0.00 d 15.50 42.00 359.00 0.00 z 617.00 0.00 z 180.52 a 0.00 z 0.00 g 0.00 1214.02
1903 0.00 a 0.00 1.50 31.50 218.00 388.00 648.00 503.00 246.50 61.50 9.00 0.00 2107.00
1904 0.00 0.00 0.00 10.50 235.50 409.50 532.00 510.00 319.00 95.50 15.50 0.00 2127.50
1905 0.00 a 0.00 12.00 31.50 173.50 498.50 582.00 684.50 385.86 a 0.00 z 0.00 b 0.00 2367.86
1906 0.00 0.00 e 0.00 79.44 c 294.00 448.00 551.50 649.00 408.00 76.50 0.00 0.00 2506.44
1907 0.00 0.00 22.00 1.00 65.00 445.00 597.00 481.50 287.00 74.00 0.00 0.00 1972.50
1908 0.00 0.00 0.00 88.50 260.00 436.50 618.50 527.00 536.50 88.00 0.00 0.00 2555.00
1909 0.00 0.00 0.00 7.50 203.00 492.50 602.00 730.00 300.00 103.00 20.00 0.00 2458.00
1910 0.00 0.00 63.50 156.50 128.50 506.79 b 658.50 530.50 264.00 189.00 0.00 0.00 2497.29
1911 0.00 0.00 1.50 46.50 414.00 710.50 693.50 538.88 a 313.00 47.00 0.00 0.00 a 2764.88
1912 0.00 0.00 0.00 31.00 250.50 394.00 630.00 522.00 305.50 72.50 2.00 0.00 2207.50
1913 0.00 0.00 0.00 79.50 185.00 554.00 510.50 g 686.50 358.33 c 129.50 0.50 0.00 1993.33
1914 0.00 0.00 0.00 0.00 z 276.00 517.50 706.00 573.50 295.50 208.50 18.50 0.00 2595.50
1915 0.00 z 0.00 0.00 207.00 119.00 314.00 491.00 437.50 276.00 104.00 7.50 0.00 1956.00
1916 0.00 a 0.00 0.00 15.50 215.50 347.00 863.00 616.50 306.50 60.50 3.00 0.00 2427.50
1917 0.00 0.00 1.00 13.50 130.00 388.50 662.50 499.00 255.00 26.50 0.50 0.00 1976.50
1918 0.00 0.00 d 10.00 1.00 292.00 506.00 638.50 662.50 228.00 197.50 5.50 0.00 2541.00
1919 0.00 0.00 v 2.50 f 28.50 207.50 580.50 732.00 585.00 432.50 72.00 0.00 0.00 2638.00
1920 0.00 0.00 5.50 1.00 273.50 523.85 d 673.00 556.00 458.00 260.50 0.00 0.00 z 2751.35
1921 0.00 a 0.00 16.00 85.50 334.00 691.00 804.00 578.50 381.50 90.50 0.00 0.00 2981.00
1922 0.00 0.00 0.00 16.00 324.00 589.50 580.50 693.00 459.50 148.00 1.50 0.00 2812.00
1923 0.00 0.00 z 0.00 58.00 223.00 561.50 792.50 537.00 377.00 83.50 0.00 0.00 f 2632.50
1924 0.00 0.00 0.00 67.00 79.57 a 388.00 578.00 584.50 204.00 143.50 2.50 0.00 2047.07
1925 0.00 0.00 5.50 139.50 212.87 a 542.50 656.00 674.50 480.50 13.50 0.00 0.00 2724.87
1926 0.00 0.00 0.00 45.00 f 415.50 480.50 789.00 689.50 356.00 84.00 0.00 0.00 2814.50
1927 0.00 0.00 0.00 79.50 191.50 443.50 665.00 499.00 458.00 172.50 0.00 0.00 2509.00
1928 0.00 0.00 24.00 48.00 389.50 411.50 744.00 672.50 350.00 162.50 0.00 0.00 2802.00
1929 0.00 a 0.00 a 0.00 91.50 246.50 490.50 783.50 714.00 332.50 92.00 0.00 0.00 2750.50
1930 0.00 0.00 5.50 95.50 290.00 524.00 886.00 765.00 395.00 171.00 6.00 0.00 3138.00
1931 0.00 0.00 0.00 152.50 264.50 724.00 817.00 693.50 577.00 192.00 19.00 0.00 3439.50
1932 0.00 a 0.00 a 1.50 45.00 364.50 672.50 814.50 676.50 336.00 93.00 0.00 0.00 3003.50
1933 0.00 a 0.00 1.50 85.50 291.50 864.50 799.50 573.00 518.00 82.50 8.00 0.00 3224.00
1934 0.00 0.00 1.50 76.00 618.93 b 709.00 789.50 606.00 242.50 203.50 1.50 0.00 3248.43
1935 0.00 0.00 22.00 50.00 159.50 442.50 885.00 694.00 402.00 57.00 0.00 0.00 2712.00
1936 0.00 0.00 0.00 48.50 431.50 524.00 958.50 770.50 469.00 56.50 2.00 0.00 3260.50
1937 0.00 0.00 0.00 46.50 341.00 486.00 772.00 840.50 408.00 100.00 0.50 0.00 2994.50
1938 0.00 0.00 a 16.00 134.50 256.00 572.50 779.00 747.50 467.50 270.50 23.50 0.00 3267.00
1939 0.00 0.00 39.50 109.00 479.50 624.50 796.00 603.00 496.55 a 107.50 7.50 2.50 3265.55
1940 0.00 0.00 0.50 31.00 247.00 585.50 798.00 579.00 455.00 200.50 3.00 0.00 2899.50
1941 0.00 0.00 0.00 125.50 448.50 532.00 734.50 700.00 430.00 136.50 19.50 0.00 3126.50
1942 0.00 0.00 3.00 181.00 248.00 514.00 683.00 654.00 321.00 144.00 9.00 0.00 2757.00
1943 0.00 0.00 32.00 39.00 203.00 570.50 740.50 650.00 227.50 116.50 0.00 0.00 2579.00
1944 3.00 0.00 0.00 19.50 441.00 606.50 662.50 624.00 354.50 118.50 23.00 0.00 2852.50
1945 0.00 0.00 44.00 46.00 158.50 353.50 648.50 653.50 356.50 119.50 1.50 0.00 2381.50
1946 0.00 0.00 53.00 151.00 178.00 541.00 703.50 560.50 324.00 130.50 0.00 0.00 2641.50
1947 0.00 0.00 0.00 42.00 174.00 412.00 693.50 886.50 482.50 304.50 1.50 0.00 2996.50
1948 0.00 z 0.00 z 0.00 z 125.00 248.50 512.50 711.00 712.00 503.50 77.50 7.50 0.00 2897.50
1949 0.00 0.00 0.00 94.00 381.50 638.00 797.50 727.50 282.00 176.00 23.50 0.00 3120.00
1950 0.00 0.00 0.00 a 13.50 222.00 574.50 599.00 567.00 360.50 219.50 5.00 0.00 g 2561.00
1951 0.00 0.00 0.00 65.00 371.50 391.00 659.00 580.00 243.00 149.00 5.00 0.00 c 2463.50
1952 0.00 a 0.00 0.00 157.00 277.50 681.50 717.81 b 585.00 402.93 a 40.50 8.00 0.00 2870.24
1953 0.00 0.00 c 6.89 d 26.00 297.50 644.50 698.00 700.00 417.00 255.50 28.00 0.00 3073.39
1954 0.00 a 0.00 0.00 101.90 a 218.50 627.50 771.50 630.50 401.00 80.00 14.00 0.00 2844.90
1955 0.00 0.00 0.50 187.50 412.50 519.00 895.00 850.95 a 439.50 154.50 0.00 0.00 3459.45
1956 0.00 0.00 a 0.00 a 7.50 336.00 745.00 621.00 653.00 370.00 266.00 3.00 0.00 3001.50
1957 0.00 a 0.00 a 0.00 151.50 234.64 b 530.50 858.00 639.00 309.00 88.35 a 0.00 a 0.00 2810.99
1958 0.00 0.00 a 0.00 61.00 376.00 426.00 601.00 747.50 440.50 193.50 7.00 0.00 2852.50
1959 0.00 a 0.00 0.00 65.00 332.00 643.00 693.50 765.00 391.00 31.00 0.00 0.00 2920.50
1960 0.00 0.00 0.00 b 103.50 260.50 473.50 680.45 a 690.50 403.50 119.50 3.50 0.00 2734.95
1961 0.00 0.00 2.14 b 22.50 216.50 587.50 652.50 686.65 a 327.50 0.00 z 91.50 0.00 2586.79
1962 0.00 0.00 a 0.00 102.22 c 402.50 502.00 614.50 652.00 272.00 163.50 0.00 5.68 a 2714.41
1963 0.00 0.00 50.50 95.50 273.50 662.50 720.50 602.00 421.50 336.50 2.00 0.00 3164.50
1964 0.00 0.00 0.00 70.50 408.50 604.00 777.00 549.73 a 321.00 104.50 25.00 0.00 2860.23
1965 0.00 0.00 0.00 39.50 383.50 545.50 691.50 600.00 158.00 133.50 15.00 a 0.00 2566.50
1966 0.00 0.00 g 17.00 23.79 a 242.50 569.00 828.50 543.00 303.62 a 89.50 0.00 0.00 2616.91
1967 0.00 0.00 a 20.50 55.00 190.50 497.50 635.50 544.00 279.00 99.20 a 0.00 0.00 2321.20
1968 0.00 0.00 33.07 a 67.50 150.50 538.00 637.00 599.00 289.00 129.50 8.50 0.00 2452.07
1969 0.00 0.00 0.00 55.34 a 316.50 358.00 684.50 618.00 317.50 75.00 3.50 0.00 2428.34
1970 0.00 0.00 0.00 97.00 317.50 585.00 679.50 634.00 370.00 98.50 0.00 0.00 2781.50
1971 0.00 0.00 0.00 73.50 191.00 650.50 547.50 564.00 338.00 149.00 0.00 0.00 2513.50
1972 0.00 0.00 0.00 14.00 316.00 499.50 589.50 591.00 285.00 64.00 0.00 0.00 2359.00
1973 0.00 0.00 2.50 50.50 192.00 585.00 653.50 670.50 296.00 172.00 5.00 0.00 2627.00
1974 0.00 0.00 2.00 73.50 181.50 486.50 790.00 493.00 230.00 79.00 0.00 z 0.00 2335.50
1975 0.00 0.00 0.00 a 5.50 367.50 516.00 741.50 643.00 225.50 123.00 35.00 0.00 2657.00
1976 0.00 0.00 0.00 z 113.08 d 288.50 546.00 701.50 622.50 314.50 107.00 0.00 0.00 2693.08
1977 0.00 0.00 5.50 185.50 503.50 583.50 703.00 490.00 340.50 16.00 6.00 0.00 2833.50
1978 0.00 0.00 10.50 22.50 307.50 553.50 651.50 607.50 493.50 72.00 24.00 0.00 2742.50
1979 0.00 0.00 0.00 33.00 204.50 485.00 639.00 0.00 z 355.00 53.50 0.00 0.00 1770.00
1980 0.00 0.00 0.00 89.00 301.73 a 507.50 672.50 566.50 310.00 62.50 5.00 0.00 2514.73
1981 0.00 2.07 a 17.00 88.00 220.00 532.50 653.00 549.00 322.00 28.00 11.50 0.00 2423.07
1982 0.00 0.00 0.00 46.00 295.00 367.50 697.00 561.00 292.00 70.00 1.50 0.00 2330.00
1983 0.00 0.00 6.00 14.00 144.00 507.00 794.50 784.50 396.00 83.00 8.50 0.00 a 2737.50
1984 0.00 0.00 0.00 20.00 215.50 569.50 656.50 681.50 282.00 154.50 0.00 0.00 2579.50
1985 0.00 0.00 5.50 177.50 386.50 423.50 621.00 482.00 328.50 45.00 0.00 0.00 2469.50
1986 0.00 0.00 28.50 75.50 285.00 608.00 715.50 477.00 324.00 75.00 0.00 0.00 2588.50
1987 0.00 0.00 12.00 166.50 469.00 0.00 z 748.00 508.50 311.50 35.00 10.50 0.00 2261.00
1988 0.00 0.00 2.50 46.00 457.00 691.50 705.50 735.00 416.50 56.00 0.00 0.00 3110.00
1989 0.00 0.00 13.50 83.00 278.50 509.00 745.50 623.00 304.00 136.50 0.00 0.00 2693.00
1990 0.00 0.00 11.50 119.50 172.00 582.50 625.00 585.00 434.00 67.00 20.50 0.00 2617.00
1991 0.00 0.00 4.00 95.00 390.00 644.50 670.00 590.00 303.50 71.50 0.00 0.00 2768.50
1992 0.00 0.00 1.50 26.00 301.50 467.50 436.00 420.50 253.50 116.50 0.00 0.00 a 2023.00
1993 0.00 0.00 0.00 21.00 197.50 415.50 626.50 605.50 179.00 82.50 0.00 0.00 2127.50
1994 0.00 0.00 1.00 75.50 367.50 590.50 562.50 500.00 382.50 112.00 2.50 0.00 2594.00
1995 0.00 0.00 3.00 4.14 a 169.50 551.50 679.50 713.00 289.00 92.50 0.00 0.00 2502.14
1996 0.00 0.00 0.00 0.00 z 172.00 562.50 587.50 571.50 286.50 104.00 0.50 0.00 2284.50
1997 0.00 a 0.00 7.50 22.50 109.02 a 593.00 663.50 538.00 355.00 180.00 0.00 0.00 2468.52
1998 0.00 0.00 16.00 57.00 436.00 450.00 658.00 0.00 z 464.50 78.50 9.50 7.50 2177.00
1999 0.00 a 0.00 9.00 21.50 269.00 504.00 771.00 583.00 316.00 76.00 28.50 0.00 2578.00
2000 0.00 3.50 37.50 61.00 344.00 471.50 636.00 609.50 354.50 145.50 7.50 0.00 a 2670.50
2001 0.00 0.00 0.00 z 84.50 298.50 541.00 726.50 636.50 290.00 71.00 61.00 0.00 2709.00
2002 0.00 0.00 0.00 98.50 195.50 642.50 793.00 590.00 399.00 46.00 0.00 0.00 2764.50
2003 0.00 0.00 13.50 97.50 184.00 493.00 659.00 646.00 315.50 155.00 1.00 0.00 2564.50
2004 0.00 0.00 17.50 80.00 250.00 441.00 583.00 436.00 438.50 85.50 8.00 0.00 2339.50
2005 0.00 0.00 9.50 113.50 230.00 625.50 712.00 571.00 493.00 216.50 31.00 0.00 f 3002.00
2006 0.00 0.00 0.00 114.50 302.50 576.21 a 762.50 624.00 246.50 99.00 14.50 0.00 2739.71
2007 0.00 0.00 23.00 93.50 384.50 560.50 664.00 615.00 386.50 195.50 1.50 0.00 a 2924.00
2008 0.00 0.00 a 0.00 23.50 181.50 505.50 652.50 528.50 336.50 85.00 42.50 0.00 2355.50
2009 0.00 0.00 0.50 42.00 245.50 485.00 496.50 494.50 358.00 5.00 9.00 0.00 b 2136.00
2010 0.00 0.00 10.00 112.50 243.23 e 555.50 716.50 715.00 284.00 135.00 7.00 0.00 2778.73
2011 0.00 c 0.00 a 0.00 16.50 230.50 523.00 804.50 611.73 a 288.89 c 150.50 0.00 0.00 2625.62
2012 0.00 e 0.00 b 124.60 e 78.46 d 332.50 g 619.44 c 260.50 u 504.00 f 298.20 e 82.00 6.43 b 0.00 e 1209.13
2013 0.00 c 0.00 c 0.00 b 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00 z 0.00
Period of Record Statistics
MEAN 0.03 0.06 8.10 72.30 278.00 533.47 694.69 619.21 350.22 116.33 7.24 0.14 2682.21
S.D. 0.28 0.39 16.64 50.44 98.49 93.68 93.13 90.02 86.20 63.76 12.89 0.91 328.77
SKEW 10.58 7.51 3.94 0.71 0.52 0.32 0.26 0.33 0.37 0.95 3.55 6.94 0.05
MAX 3.00 3.50 124.60 207.32 618.93 864.50 958.50 886.50 577.00 336.50 91.50 7.50 3459.45
MIN 0.00 0.00 0.00 1.00 65.00 314.00 436.00 420.50 158.00 5.00 0.00 0.00 1972.50
NO YRS 115 115 114 113 117 114 113 113 118 115 115 113 91